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Questions tagged [lwm2m]

Lightweight M2M is an open protocol from the Open Mobile Alliance SpecWorks, the Open Mobile Alliance (OMA) is a standards organization which develops open, international technical standards for the mobile phone industry.

Lightweight M2M is an open protocol from the Open Mobile Alliance SpecWorks, the Open Mobile Alliance (OMA) is a standards organization which develops open, international technical standards for the mobile phone industry.

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Using gRPC as a IoT protocol instead of LWM2M/CoAP

I have been toying with the idea of using gRPC for 'IoT' type devices; not very constrained things like sensors; more like single board computer inbuilt devices like robots, drones and the like. What is needed a interface between device and…
Alex Punnen
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What differ CoAP and LwM2M?

I study about IoT protocol CoAP, MQTT, LwM2M. I was able to know a little about CoAP and MQTT. But I do not know what LwM2M is. I do not know what's different from CoAP. I just thought that LwM2M is not a protocol with some format but a system…
NWOWN
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Does Leshan support ObjLink?

I am trying to create my composite LWM2M object by using objlink type. For Leshan, the only source on how to write the spec file in JSON seems to be the official oma-objects-spec.json, which does not contain examples of objlinks. Can anyone provide…
Chunhao Wu
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How to send firmware package from LWM2M Leshan server to LWM2M Wakaama client?

I have a LwM2M Wakaama client working with a Leshan server. When I try to send a huge hexbinary string via the write option on Package resource for Firmware update object 5, I get the following error message on the client side: "Block1 NOT…
VKalley
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Do Thingsboard support LwM2M multilpe instance object?

I have a sensor that uses multiple instances of the LwM2M Generic Sensor (3300) object. Sensor send a batch update of instances to Thingsboard LwM2M Server, but it doesn't show this report. I test my sensor with the Leshan server and Leshan shows…
inimin
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Unable to send Southbound data in Fiware IoTAgent LWM2M

When provisioning the Robot example device, the entities are getting created with position_info and position_status attributes but the update Position attribute in Orion is giving an error {"code": "404", "reasonPhrase": "No context element found",…
Anupam Kumar
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Send NGSIv2 data to Orion Context Broker

I explain the problem. I need to register a client to an Orion context broker. The client (OMALWM2M) is connected to the IoT Agent which acts as a bridge with NGSI. My problem is that when I connect to localhost: 1026 / v2 / entities there is no…
Antonio
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Fiware Lightweight M2M agent: how to send measures from devices

I am investigating how to use the Fiware's Lightweight M2M agent. I read: https://fiware-iotagent-lwm2m.readthedocs.io/en/latest/deviceProvisioning/index.html and this other helped so much: Setting up LWM2M device communicates with IDAS But I…
Fabio Suarez
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Can a GSM network operator access device firmware version?

Can a GSM network operator access the device firmware version? As far as I know they can read IMSI and IMEI or the extended IMEI namely IMEI-SV which encodes some sort of version numbering (but is not used by all manufacturers. Can a…
Georg Heiler
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Lightweightm2m-iotagent can't connect to mongodb

I am setting up a demo on IoT using LWM2M device on FIWARE platform (using Orion CB). However, the lightweightm2m-iotagent cannot connect to the mongodb. Any idea why this happen? Below is the error I am getting: { "message": "Cannot read…
arilwan
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Problem with the communication between lwm2m client and Iot Agent

In these days my teacher gives me to develop a system which uses these components: Lwm2m client (developed with leshan lib in java); Fiware Context Broker (Orion); Lwm2m-Iot Agent (https://github.com/telefonicaid/lightweightm2m-iotagent). I have a…
Army96
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Device not sending data to LWM2M Agent

I'm having trouble with LWM2M device sending data to the IOT Agent. The device connects to the server successfully. However, it seems the device isn't sending data to the IOT Agent, with no helpful tip, sending the command: curl --request POST \ …
arilwan
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Setting up LWM2M device communicates with IDAS

I am new to Fiware and need help. I want to configure a road side device (sensor) using CoAP protocol to the IDAS IoT agent (Lightweight M2M agent), so this device can send some data to IDAS. How can I accomplish this task?
arilwan
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Can't connect device via LwM2M to Thingsboard live demo server

I was following the instructions provided at Thingsboard LwM2M-API. When trying to connect a Wakaama example client, I get a Connection creation failed. log message: $ ./lwm2mclient -h lwm2m.thingsboard.cloud -n NuttX -p 5685 -c Trying to bind…
Michael Jung
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Using endpoint client name and/or keys in LwM2M bootstrap interface

I've been reading the LwM2M spec (version 1.1.1) and have played around with Eclipse Leshan to test things out myself. I've managed to bootstrap a client using a BS server, and then register to the device management server and send data there…
MJV
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